Merman

I just watch the video but it come from ghost talk.
http://youtu.be/fy3E9Th_DFg
I think it is fake because of Merman，those has been found that the way of swimming is left and right
insteal of up and down.
http://tw.aboluowang.com/life/2006/0730/8088.html
Chinese seemed that had found it before. Call it 黑麟鮫人.